What term refers to a stone formed within an organ, commonly found in kidney, renal pelvis, ureters, bladder, or urethra?

What term refers to a stone formed within an organ, commonly found in kidney, renal pelvis, ureters, bladder, or urethra?

• A. Benign Prostatic Hyperplasia (BPH)
• B. Blood Urea Nitrogen (BUN)
• C. Calculus
• D. Chlamydia

Answer: (C)

Calculus refers to a stone formed within an organ. When minerals crystallize and come together in the urinary tract—in the kidney, renal pelvis, ureters, bladder, or urethra—they form a solid mass called a calculus (plural calculi). Clinically, this is often described as nephrolithiasis or urolithiasis, depending on the location. The other terms listed don’t describe stones: benign prostatic hyperplasia is prostate enlargement, blood urea nitrogen is a lab value reflecting kidney function or hydration, and Chlamydia is a sexually transmitted infection.

Calculus refers to a stone formed within an organ. When minerals crystallize and come together in the urinary tract—in the kidney, renal pelvis, ureters, bladder, or urethra—they form a solid mass called a calculus (plural calculi). Clinically, this is often described as nephrolithiasis or urolithiasis, depending on the location. The other terms listed don’t describe stones: benign prostatic hyperplasia is prostate enlargement, blood urea nitrogen is a lab value reflecting kidney function or hydration, and Chlamydia is a sexually transmitted infection.